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This article focuses on "how to use PHP mathematical functions", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "how to use PHP mathematical functions"!

What is the mathematical function of PHP

Let's review before we introduce the mathematical function, what is the function? In the knowledge of mathematics, we have learned the function, the function and the parameters of the function are inseparable, when the parameters of the function are determined, the value of the function is determined, and the rules used for this parameter determine our function.

Mathematical functions are rules that control function values using mathematical knowledge, and mathematical functions can deal with values within the range of integer and float. Let's take a look at several mathematical functions commonly used in PHP and their usage.

The usage of commonly used Mathematical functions in PHP

There are many mathematical functions in PHP, and there are many problems that can be solved, such as finding the maximum and minimum, rounding the floating point, finding the square root, and so on. Next, let's see what kind of functions can be achieved.

Abs () function

The abs () function is arguably the simplest of the mathematical functions. The abs () function can return the absolute value of a number. The basic syntax format of the abs () function is as follows:

Abs (mixed $number): number

It should be noted that the parameter $number represents the numerical value to be processed, the returned number is the absolute value of the parameter, and if the parameter $number is float, the returned result is float.

Let's take a look at the use of the abs () function through an example, as follows:

Output result:

The above example shows that the absolute value of a parameter can be obtained through the abs () function.

Ceil () function

In PHP, you can use the ceil () function to complete the rounding of a number. That is, to calculate the smallest integer greater than a number. The basic syntax format of this function is as follows:

Ceil (float $value): float

It is important to note that the next integer that needs to be returned is not less than the parameter $value, that is, the return value float;. If the parameter $value has a decimal part, it will be moved forward.

Next, let's take a look at the use of the ceil () function through an example, as follows:

Output result:

In the above example, we complete the rounding of a number through the ceil () function.

Floor () function

The rounding of a number can be completed through the floor () function, that is, rounding down to the nearest integer. The basic syntax format of this function is as follows:

Floor (float $value): float

It should be noted that the nearest integer not greater than value is returned, rounding off the decimal part. The parameter $value represents the number to be rounded.

Next, let's take a look at the use of the floor () function through an example, as follows:

Output result:

In the above example, the rounding of a number is completed through the floor () function.

Pow () function

The pow () function can get the nth power of a number, that is, to operate to the power. The basic syntax format of this function is as follows:

Pow (number $base, number $exp): number

It should be noted that the returned result is the power of the exp power of base, the parameter $base identifies the target number, and the parameter $exp represents the index of the target number.

Next, let's take a look at the use of the pow () function through an example, as follows:

Output result:

In the above example, the pow () function is used to operate to the nth power of a number.

A small part of the knowledge mathematical functions introduced above, there are many mathematical functions, such as:

Acos: gets the inverse cosine.

Asin: gets the arcsine value.

Atan: gets the inverse tangent.

Atan2: calculates the inverse tangent of a binary.

Base_convert: converts the carry mode of a number.

BinDec: convert binary to decimal.

At this point, I believe you have a deeper understanding of "how to use PHP mathematical functions". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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